421-301K Billet 454/502 Mercury Serpentine Pulley Kit
This kit comes with:
- 1 - Crankshaft pulley
- 1 - Circulating pump pulley
- 1 - Sea pump pulley
- 1 - Power steering pulley
- 1 - 17mm straight shaft Alternator pulley (Does not work with Mando)
- 1 - Idler pulley
All pulleys are CNC machined and are tumble polished (semi-polished, satin finish).
NOTE: This kit will not retrofit V-Belt Pulley Systems to Serpentine. It is to replace existing Serpentine setups only!
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This Part has options, please click the button below to order.
421-201K Billet V-Groove Engine Pulley Kit For Mercury Big Block Chevy Generation 4
This kit includes:
- (1) 3-groove crankshaft front pulley
- (1) Sea pump pulley
- (1) Power steering pulley with mandrel
- (1) Alternator Pulley. Note: Please indicate what style alternator shaft you have for the correct pulley.
At Hardin Marine we manufacture the finest high speed deep groove engine pulleys available. Each pulley is manufactured from 6061-T6 billet aluminum using Tru-Trac technology. Tru-Trac allows the V-belt to ride deep in the belt groove for maximum belt contact. Both the power steering and sea pump pulley use mandrel mounting features that protect the pulley from undue shaft heat. The most common cause for failure in lesser quality pulleys is caused from heat transferring to the pulley releasing from the shaft causing undue damage and safety hazards. All Hardin Marine shaft mount style pulleys use mandrels assuring you the best money can buy.
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This Part has options, please click the button below to order.
421-202K Billet V-Groove Engine Pulley Kit For Mercury Big Block Chevy Generation 5 & 6
This kit includes:
- (1) 3-groove crankshaft front pulley
- (1) Sea pump pulley
- (1) Power steering pulley with mandrel
- (1) Alternator Pulley. Note: Please indicate what shaft style your alternator has for the correct pulley.
At Hardin Marine we manufacture the finest high speed deep groove engine pulleys available. Each pulley is manufactured from 6061-T6 billet aluminum using Tru-Trac technology. Tru-Trac allows the V-belt to ride deep in the belt groove for maximum belt contact. Both the power steering and sea pump pulley use mandrel mounting features that protect the pulley from undue shaft heat. The most common cause for failure in lesser quality pulleys is caused from heat transferring to the pulley releasing from the shaft causing undue damage and safety hazards. All Hardin Marine shaft mount style pulleys use mandrels assuring you the best money can buy.
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421-219 Double Groove V-Belt Alternator Pulley for use on alternators with round pulley shaft. 2-5/8" OD. Fits a .670" Round Shaft.
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421-221 Gen 6 BBC Serpentine Power Steering Pulley
These power steering pulleys mount with a mandrel so you can bolt the pulley
to the mandrel. Some manufacturers have you press their pulleys on, these
usually work themselves off due to belt heat & pump heat. Always use a mandrel
for mounting. Raw Finish.
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625-4312
Replacement 496 Sea Pump Axius 7" Pulley and Mandrel Kit
This billet pulley is designed as a replacement for popular MerCruiser Axius applications. Will fit stock MerCruiser or Hardin Gen 7 Pump. For 350, 496, 502 Mag with 7" diameter Axius pulley applications only. Includes mandrel and bolts.
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625-8107 Hub, Xover P/S Pump-Pulley
Power steering pump mandrel. Fits late model power steering pumps with
plastic reservoir, and krc style pumps, both with a 0.669" diameter shaft.
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625-8223 Billet Serpentine Idler Pulleys - Merc EFI Ribbed Idler Pulley 4.42" Diameter
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This Part has options, please click the button below to order.
625-822 + Option(s) Mercury 600/662/700 Upper Blower Pulley
Billet aluminum blower pulley, 3.25" or 3.50" diameter. NOTE: The 3.50" pulley has slots cut in the pulley face while the 3.25" pulley does NOT have the slots cut in the pulley face.
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625-4002 Pulley Mandrel Mercury Sea Pumps.
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421-218 S/C BBC 3 Groove Crank Pulley
- BBC 3grv crank pulley for Supercharger application.
- Will fit either 3 or 6 bolt damper.
- 5.40 outside diameter by 2.350 thick
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625-4364 Smooth Idler Pulley
OD of belt surface is 2.420". Fits 0.675" shaft.
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625-8176 6-Rib Serpentine Crankshaft Pulley for Big Block Chevy (Mercury HP500
Engine Spacing), Polished
These are billet crankshaft pulleys that are CNC precision machined from 6061
T-6 billet aluminum. 5-1/2" Diameter, 1-3/4" thick
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421-843 2-Groove Billet Crankshaft Pulley For Big Block Chevy
- Machined from 6061-T6 billet aluminum.
- Set up for a Mercury replacement with deeper v-groove.
- Comes highly polished.
- Diameter of 6.5"
- Pilot Hole is 1-1/8"
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421-215 BB Chevrolet 3 V-Groove Billet aluminum OEM style Crankshaft Pulley. This pulley fits Chevrolet 454 7.4L and 502 8.2L late model applications. Replaces Mercruiser Part #90081T1 and casting # 90081C.
Pulley Specifications: - 2.25" thick from damper face to front of pulley
- 1st groove (alternator) 6.60" diameter
- 2nd groove (sea pump) 5.05" diameter
- 3rd groove (power steering) 6.60" diameter
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740-64201 Big Block Chevy Billet Small Diameter Crank Pulley - Machined from solid billets of the highest-grade aircraft aluminum for maximum durability and feature deep, precision-machined groove to ensure belt retention, even during extreme changes in engine rpm. These pulleys have a black anodized hard-coat for extended life and corrosion resistance . Diameter 5.250".
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421-858 Single Groove Billet Crankshaft Pulley For Ford 460 - Machined from 6061-T6 billet aluminum.
- Comes highly polished.
- 5-5/8" Diameter
- 1-3/4" Height
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421-856 2-Groove Billet Crankshaft Pulley For Oldsmobile - Machined from 6061-T6 billet aluminum.
- Comes highly polished.
- 4-3/4" Diameter
- 2-1/4" Height
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421-841 Single Groove Billet Crankshaft Pulley For Big Block Chevy
- Machined from 6061-T6 billet aluminum.
- Set up for a Mercury replacement with deeper v-groove.
- Comes highly polished.
- 6-7/16" Diameter
- 7/8" Height
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